Method and system for image registration and change detection
a change detection and image technology, applied in the field of image processing, can solve the problems of significant deformation of change detection performance, translation, and even slight rotation of the reference, and the significant challenges of most change detection systems, so as to improve the accuracy and complexity of local optimization, minimize the sum absolute difference (sad), and maximize correlation
a change detection and image technology, applied in the field of image processing, can solve the problems of significant deformation of change detection performance, translation, and even slight rotation of the reference, and the significant challenges of most change detection systems, so as to improve the accuracy and complexity of local optimization, minimize the sum absolute difference (sad), and maximize correlation
US20110222781A1Inactive Publication Date: 2011-09-15US SEC THE ARMY THE
Image
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0059]The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
[0060]The embodiments herein provide the option of a joint image registration and change detection system and method. For example, embodiments described herein locally register reference and test images, and perform change detection analysis between the two images. Referring now to the drawings...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A system and method for detecting changes by comparing images which cover the same physical area but are collected at different times, the system comprising: at least one input for inputting an image of a target area; the image of the target area having signatures representing outstanding features; at least one processor operating to divide the image of a target area into a plurality of target subimages; at least one memory comprising reference data comprising reference subimages taken at or near the target area at various times, the at least one processor operating to determine a sparse image representation from the reference data; the sparse image representation of the target data being a linear combination of reference data from corresponding reference subimages stored in the at least one memory; the at least one processor operating to compare the target image to the sparse image representation and to match signatures from the target image to the sparse image representation to register the images and perform change detection.
Description
STATEMENT OF GOVERNMENT INTEREST[0001]The embodiments herein may be manufactured, used, and / or licensed by or for the United States Government without the payment of royalties thereon.TECHNICAL FIELD[0002]The embodiments herein generally relate to image processing, and more particularly, to change detection techniques.BACKGROUND OF THE INVENTION[0003]Change detection is a popular and important image processing process with numerous practical applications such as medical imaging, environment, agriculture, and other remote sensing tasks. There are, however, some significant challenges confronting most change detection systems. The first challenge is image registration. For example, two images—a first image may be referred to as a reference image and a second image may be referred to as a test image in a change detection system or algorithm—are generated at different times. The reference image and the test image, however, are usually not aligned with each other, since the imaging platf...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
15 Sep 2011
Publication
US20110222781A1
- IPC
- G06K9/68; G06V20/13
- CPC
- G06K9/6244; G06K9/6249; G06T7/2053; G06K9/0063; G06T2207/20221; G06T2207/20224; G06T2207/20021; G06T7/254
- Inventors
- NGUYEN, LAM HUY; TRAN, TRAC D.